Consider the arithmetic sequence below. -5, 4, 13, 22, 31, ...
Select all functions that define the given sequence.
O
f(n) = -5n+ 9
f(1) = -5, f(n) = f(n-1) + 7, for n 2 2
f(1) = -5, f(n) =- fin - 1) + 9, for n 22
f(1) = -5, f(n) = f(n-1) + 9, for n 2 2
0
f(n) = 9n - 14
f(n) = 9n - 5

i'm sure goog can you get that answer

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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step-by-step explanation:

there is nothing below so i cannot

step-by-step explanation: